CN102424452A - Three-phase three-dimensional electrode photoelectric catalytic reactor and application thereof - Google Patents

Three-phase three-dimensional electrode photoelectric catalytic reactor and application thereof Download PDF

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Publication number
CN102424452A
CN102424452A CN2011102408011A CN201110240801A CN102424452A CN 102424452 A CN102424452 A CN 102424452A CN 2011102408011 A CN2011102408011 A CN 2011102408011A CN 201110240801 A CN201110240801 A CN 201110240801A CN 102424452 A CN102424452 A CN 102424452A
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reactor
phase
dimensional
silica tube
deck
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高立新
刘涛
何康宁
张大全
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Shanghai University of Electric Power
University of Shanghai for Science and Technology
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Shanghai University of Electric Power
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Abstract

The invention relates to a three-phase three-dimensional electrode photoelectric reactor and application thereof. The reactor comprises a reactor shell, a titanium metal net anode, a stainless steel or graphite cathode, a gas distribution board, a double-layer U-shaped quartz pipe as well as a light source UV (ultraviolet) lamp, a three-dimensional particle electrode and clapboards placed in the quartz pipe. According to the three-phase three-dimensional photoelectric reactor provided by the invention, a non-homogeneous three-dimensional electrode and a photocatalysis technique are ingeniously combined, not only are the oxidation of the anode and the reduction of the cathode utilized, but also the synergism of.OH, H2O2, -OH and other active substances generated by an electric field and photocatalysis are utilized, the surfaces of TiO2 particles are continuously renewed, and the reaction system is organically harmonized, thus the organic matter degradation reaction is more thorough, and the decolorizing rate in printing and dyeing wastewater treatment can reach 97.09%. A large reaction chamber is uniformly divided into 2-6 small reaction chambers by the clapboards, thus a group of 2-6 control experiments can be carried out under the reaction conditions of the same voltage, light source, reaction time and the like.

Description

A kind of three phase three-diemsnional electrode photoelectric catalyticreactor and application thereof
Technical field
The present invention relates to a kind of three-phase three-dimensional photo electrocatalysis reactor, be used for the processing of laboratory hardly degraded organic substance.
Background technology
Along with the development of modernization industry, organic waste water is more and more serious to the influence of environment, and especially the processing of high concentration organic contaminant is the difficult point and the focus of our times Industrial Wastewater Treatment.People such as Carey have reported TiO 2Photocatalytic oxidation successfully is used for water PCB compound dechlorination (Carey J H; Lawrence J; Tosine H M.Photodechlorination of PCB ' s in the presence of titanium dioxide in aqueous suspensions [J]. Bul1 of Environ Contam Toxicol; 1976,16 (6): 697-701), the heterogeneous photochemical catalysis of semi-conductor has caused widely in water treatment field to be paid close attention to.With TiO 2Obtain people's attention for the application of multiphase photocatalysis in environment protection of photocatalyst; But electron-hole pair is very easily compound, and electric field assists photocatalysis technology to help to address this problem, and promptly applies certain bias voltage; Promote the separation of photo-generated carrier, thereby improve activity of such catalysts.This is a kind of novel deep oxidation technology with photochemical catalysis and electrochemical oxidation coupling.
Eighties of last century proposes the three-diemsnional electrode notion end of the sixties, and three-diemsnional electrode is a kind of novel electrochemical process reactor drum.With the two-dimensional electrode system by contrast, it has the face body than increasing, interionic distance is little, mass transfer effect is good, the current efficiency advantages of higher.Wherein granule electrode usually adopts activated carbon supported catalyzer, and the adsorption of gac can make Ti0 2The concentration of surface organic pollutant raises in subrange; Thereby raising speed of reaction; And the organic pollutant that is adsorbed participates in oxidation and reacted away, and gac is reproduced, i.e. in-situ regeneration (Wang Hongjuan in the pollutent environment; Xi Hongxia. the present situation of phenolic wastewater treatment technology and DEVELOPMENT PROSPECT [J]. Treatment of Industrial Water, 2002; 22 (6): 6-9); Photochemical catalysis combined with three-diemsnional electrode has produced effect preferably, An Taicheng etc. disclose a kind of (publication number: CN1526652A) continuous circulating fixed bed electrode photo catalysis reactor.
The photo electrocatalysis reactor of existing report, some is that light source shines from the outside, light source does not fully use like this.There are some to adopt light source to be positioned at the central authorities of reactor drum; What but anode and negative electrode were positioned at reactor shell is vertical with light source and the housing parallel with light source up and down; Like this for photograph test just can not be for power; Anode and negative electrode for reactor drum are vertical, and be parallel with housing with light source and the photo electrocatalysis reactor that big reaction chamber is divided into 2-6 reaction chamber do not appeared in the newspapers.
Summary of the invention
The objective of the invention is provides a kind of in order to solve above-mentioned technical problem Three phase three-diemsnional electrodePhoto electrocatalysis reactor and the application aspect the processing of hardly degraded organic substance thereof.
Know-why of the present invention
A kind of three-phase three-dimensional photo electrocatalysis reactor; Be about to the ingenious combination of three phase three-diemsnional electrode and photoelectrocatalysis technology, fully take into account contrast experiment's in the experiment requirement again, design the photo electrocatalysis reactor that in experimental study, uses; With the air is source of the gas, and the three dimensional particles electrode materials is by nano-TiO 2Be carried on the activated carbon granule and constitute.
Technical scheme of the present invention
A kind of three-phase three-dimensional photo electrocatalysis reactor comprises reactor shell, ti-alloy mesh anode, stainless steel or graphite cathode, air distribution plate, double-deck U type silica tube and the light source UV lamp that places this silica tube, three dimensional particles electrode and dividing plate;
Described stainless steel or graphite cathode are cylindrical, are installed on the housing inboard, are close to the housing inboard, and the ti-alloy mesh anode links to each other with the positive pole of power supply, and stainless steel or graphite cathode extremely link to each other with the negative pole of power supply; The stainless steel of each reaction chamber or graphite cathode connect naturally, and the ti-alloy mesh anode of each reaction chamber is connected with lead at the top;
Described light source UV lamp places double-deck U type silica tube inner tube; Double-deck U type silica tube places the central authorities of reactor shell; Its top is exposed to the top 3-5cm of reactor shell; Its bottom places on the air distribution plate, and the skin of double-deck U type silica tube is close on each dividing plate limit wall, places the ti-alloy mesh anode between the silica tube skin of adjacent two dividing plates and double-deck U type;
The wavelength of described light source UV lamp is 365nm, and power is 200~500W;
Described ti-alloy mesh anode, to guarantee transmittance, screen distance is 6-8mm;
Described ti-alloy mesh anode surface applies one deck nano-TiO 2Catalytic film as the light anode, also can not apply and only make electrode;
The outer tube of exposing the double-deck U type silica tube of the part outside reactor shell above the described double-deck U type silica tube is provided with coolant intake and cooling water outlet at the horizontal relative position of the 3-5cm distance apart from the reactor shell top, and wherein the tubule of coolant intake connection is deep into the bottom of the interlayer of silica tube ectonexine; Can use less pressure just can send into water coolant from coolant intake like this, also be easy to flow out from the cooling water outlet;
The 5cm place is provided with air distribution plate to reactor shell apart from the bottom, and this air distribution plate and reactor shell inboard are bonding, and is fixed by the membrane support of solarization air cell;
This air distribution plate separates the housing of reactor drum and is two portions up and down, and the bottom is a solarization air cell, and top is reaction chamber;
This air distribution plate is to adopt the core glass material to process, and hole had both guaranteed the reaction chamber uniform aeration less than 2mm, and the bubble ratio that is unlikely to again to produce is bigger;
Between double-deck U type silica tube and reactor shell, pass 2~6 dividing plates of top spaced set of air distribution plate to reactor shell, the solarization air cell of upper mattress chamber and bottom is divided into 2~6 single reaction chambers and 2~6 single solarization air cell from reactor bottom;
In a kind of three-phase three-dimensional photoelectric reactor of the present invention, 2~6 single chambers are arranged, under reaction conditionss such as same voltage, light source, reaction times, compare test, can do one group of 2~6 control experiment;
The housing of described reactor drum is cylindrical, and material is synthetic glass, high boron glass, stainless steel etc.
All there is 1 inlet pipe that caliber is identical in the described single solarization air cell that is positioned at lower housing portion, and its caliber is 2~4cm, and each solarization air cell's tolerance equates, to guarantee each reaction chamber uniform aeration;
Described three dimensional particles electrode materials is by nano-TiO 2Be carried on the activated carbon granule and constitute, be filled in each single reactor chamber, as required the different adulterated TiO of load 2Complex body can be taked the different catalyst load according to different experiments.
During the operation of three-phase three-dimensional photoelectric reactor; To electrode a constant voltage is provided by external D.C. regulated power supply, the surface recombination polarization takes place in granule electrode under electric field action, under effect of electric field; Electronics separates with the hole, moves to the different positions of particle surface.Suspension system Ti0 2Produce synergy with the gac coexistence, gac has quickened the carrying out of photodegradation reaction largely.
A kind of three-phase three-dimensional photoelectric reactor of the present invention is applicable to hardly degraded organic substance, like the processing of dyeing waste water, and is specially adapted to the controlled trial of processing of the dyeing waste water of laboratory stage.
Beneficial effect of the present invention
A kind of three-phase three-dimensional photoelectric reactor of the present invention is agent structure with the cylindrical reactor, and the complete blended mode of solid, liquid, gas three-phase is reacted, to reach best mass transfer effect and UV-light utilization ratio.And because process with core glass the bottom of a kind of three-phase three-dimensional photoelectric reactor of the present invention, uniform aeration guarantees 2 ~ 6 solarization air cell's equivalent aerations, and when only using single chamber, auxiliary cooling is done in available two adjacent chambers.
In addition, a kind of three-phase three-dimensional photoelectric reactor of the present invention not only utilizes the reductive action of anodic oxygenizement and negative electrode with inhomogeneous three dimensional electrode and the ingenious combination of photocatalysis technology, and the OH, the H that utilize electric field to produce 2O 2,-OH isoreactivity thing and photochemical catalysis act synergistically, at TiO 2Particle surface is brought in constant renewal in, and the organic coordination reaction system makes DeR more comprehensive, and in the processing of dyeing waste water, its percent of decolourization can arrive 97.09%.
And because a kind of three-phase three-dimensional photoelectric reactor of the present invention has 2~6 single chambers, can do one group of 2~6 control experiment, promptly under reaction conditionss such as same voltage, light source, reaction times, compare test.
Description of drawings
Fig. 1, three phase three-diemsnional electrode photoelectric catalyticreactor structural representation.
Fig. 2, three-phase three-dimensional photo electrocatalysis reactor vertical view.
Embodiment
Below through embodiment and combine accompanying drawing that the present invention is further set forth, but do not limit the present invention.
Embodiment 1
A kind of three phase three-diemsnional electrode electric light electricity reactor drum, its structural representation is as shown in Figure 1, comprises reactor shell 1; Ti-alloy mesh anode 6, stainless steel cathode 7, air distribution plate 5; Double-deck U type silica tube 4 and the light source UV lamp 3 that places this silica tube, three dimensional particles electrode and dividing plate 2;
Make anode with ti-alloy mesh 6, for guaranteeing that the transmittance screen distance is 6-8mm; Stainless steel 7 is made negative electrode, and ti-alloy mesh anode 6 is connected the electric connection of direct supply with stainless steel cathode 7.Each reaction chamber is installed ti-alloy mesh 6 anodes, and the ti-alloy mesh anode titanium net of each reaction chamber is connected with lead at the top;
Light source UV lamp 3 places double-deck U type silica tube 4 inner tube; Double-deck U type silica tube 4 places the central authorities of reactor shell 1, and its top is exposed to the top 3-5cm of reactor shell, and its bottom places air distribution plate; Its side is fixed by dividing plate, places the ti-alloy mesh anode between two dividing plates;
The wavelength of described light source UV lamp is 365nm, and power is 250W;
The outer tube of exposing above the double-deck U type silica tube 4 at the double-deck U type silica tube 4 of the part of reactor shell 1 outside is provided with coolant intake 9 and cools off water outlet 10 at the horizontal relative position apart from 3cm place, reactor shell 1 top; Wherein the tubule of coolant intake 9 connections is deep into the bottom of the interlayer of double-deck U type silica tube 4 ectonexines; Can use less pressure just can send into water coolant from coolant intake 9 like this, also be easy to flow out from cooling water outlet 10;
The 5cm place is provided with air distribution plate 5 to reactor shell 1 apart from the bottom, and air distribution plate 5 is to adopt the core glass material to process, and guarantees hole less than 2mm, has both guaranteed the reaction chamber uniform aeration, and the bubble ratio that is unlikely to again to produce is bigger; This air distribution plate and reactor shell inboard are bonding, and are fixed by the membrane support of solarization air cell, and this air distribution plate separates the housing of reactor drum and is two portions up and down, and the bottom is a solarization air cell, and top is reaction chamber;
Between double-deck U type silica tube 4 and reactor shell 1, pass 4 dividing plates 2 of top spaced set of air distribution plate to reactor shell from reactor bottom; As shown in Figure 2, dividing plate 2 is divided into 4 single reaction chambers and 4 single solarization air cell with the solarization air cell of upper mattress chamber and bottom respectively;
In a kind of three-phase three-dimensional photoelectric reactor of the present invention, 4 single chambers are arranged, under reaction conditionss such as same voltage, light source, reaction times, compare test, can do one group of 4 control experiment.
Described 4 single solarization air cell that are positioned at reactor shell 1 bottom, the inlet mouth 8 that each all has 1 caliber is 2cm guarantees that like this each solarization air cell's tolerance equates, to guarantee each reaction chamber uniform aeration;
Described three dimensional particles electrode materials is by nano-TiO 2Be carried on the activated carbon granule and constitute, be filled in each single reactor chamber, as required the different adulterated TiO of load 2Complex body can be taked the different catalyst load according to different experiments.
Housing 1 material of described reactor drum is a synthetic glass.
In reactor drum when operation, provide a constant voltage by external D.C. regulated power supply to electrode, and it is indoor to put into reactor reaction after the granule electrode that load has a catalyzer and the sewage mixing.
Application implementation example 1
Three phase three-diemsnional electrode photoelectric reactor in the application implementation example 1 carries out photochemical catalysis simulation treatment of dyeing wastewater
The diameter of the housing of three phase three-diemsnional electrode electric light electricity reactor drum is 12-22cm, highly is 17-30cm, and the distance between anode and the negative electrode is 5-10cm;
Granule electrode adopt sol-gel method (Li Ning. the preparation of titanium dioxide optical catalyst and modification and photoelectrocatalysis performance study [D]. [ master thesis ]. Hebei: University On The Mountain Of Swallows's environment and chemical engineering institute, 2007) make activated carbon supported TiO 2, gac is the powder attitude, particle diameter is less than 0.175mm.
Reactive brilliant red simulation dyeing waste water, starting point concentration be the reactive brilliant red dye solution of 200 mg/L after granule electrode adds reactor drum, bubbling air, control air flow are 80L/h, open uv lamp and power supply simultaneously.77.46% percent of decolourization can be arrived behind the reaction 60min, 97.09% percent of decolourization can be arrived behind the reaction 90min.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.Those skilled in the art should understand; The present invention is not restricted to the described embodiments; The just principle of describing in the foregoing description and the specification sheets of invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the present invention that requires protection.

Claims (10)

1. a three-phase three-dimensional photoelectric reactor is characterized in that this reactor drum comprises reactor shell, ti-alloy mesh anode, stainless steel or graphite cathode, three dimensional particles electrode, air distribution plate, dividing plate and double-deck U type silica tube and the light source UV lamp that places this silica tube;
Described stainless steel or graphite cathode are cylindrical, are installed on the housing inboard, are close to the housing inboard, and the ti-alloy mesh anode links to each other with the positive pole of power supply, and stainless steel or graphite cathode extremely link to each other with the negative pole of power supply; The stainless steel of each reaction chamber or graphite cathode connect naturally, and the ti-alloy mesh anode of each reaction chamber is connected with lead at the top;
Described light source UV lamp places double-deck U type silica tube inner tube; Double-deck U type silica tube places the central authorities of reactor shell, and its top is exposed to the top 3-5cm of reactor shell, and its bottom places air distribution plate; The skin of double-deck U type silica tube is close on the limit wall of each dividing plate; Place the ti-alloy mesh anode between adjacent two dividing plates and the silica tube skin, described ti-alloy mesh anode, screen distance are 6-8mm;
The outer tube of exposing the double-deck U type silica tube of the part outside reactor shell above the double-deck U type silica tube is provided with coolant intake and cooling water outlet at the horizontal relative position of the 3-5cm distance apart from the reactor shell top, and wherein the tubule of coolant intake connection is deep into the bottom of the interlayer of silica tube ectonexine;
The 5cm place is provided with air distribution plate to reactor shell apart from the bottom, and this air distribution plate and reactor shell inboard are bonding, and is fixed by the membrane support of solarization air cell, and this air distribution plate separates the housing of reactor drum and is two portions up and down, and the bottom is a solarization air cell, and top is reaction chamber;
Between double-deck U type silica tube and reactor shell, pass 2~6 dividing plates of top spaced set of air distribution plate to reactor shell, the solarization air cell of upper mattress chamber and bottom is divided into 2~6 single reaction chambers and 2~6 single solarization air cell from reactor bottom;
All there is 1 inlet mouth that caliber is identical in described each single solarization air cell that is positioned at lower housing portion;
Described three dimensional particles electrode materials is filled in each single reactor chamber.
2. a kind of three-phase three-dimensional photoelectric reactor as claimed in claim 1 is characterized in that described reactor shell is cylindrical, and the shell material of described reactor drum is synthetic glass, high boron glass or stainless steel.
3. a kind of three-phase three-dimensional photoelectric reactor as claimed in claim 2 is characterized in that the caliber of the inlet mouth that each single solarization air cell of described lower housing portion is equal is 2~4cm.
4. a kind of three-phase three-dimensional photoelectric reactor as claimed in claim 3 is characterized in that described dividing plate quantity is preferably 4.
5. a kind of three-phase three-dimensional photoelectric reactor as claimed in claim 4 is characterized in that described ti-alloy mesh
Anode surface applies one deck nano-TiO 2Catalytic film.
6. a kind of three-phase three-dimensional photoelectric reactor as claimed in claim 5 is characterized in that described air distribution plate is to adopt the core glass material to process, and hole is less than 2mm.
7. a kind of three-phase three-dimensional photoelectric reactor as claimed in claim 6 is characterized in that described three dimensional particles electrode materials is by nano-TiO 2Be carried on the activated carbon granule and constitute.
8. like the described a kind of three-phase three-dimensional photoelectric reactor of the arbitrary claim of claim 1~7, its characteristic exists
Wavelength in described light source UV lamp is 365nm, and power is 200~500W.
9. be used for the processing of hardly degraded organic substance like the described a kind of three-phase three-dimensional photoelectric reactor of the arbitrary claim of claim 1~7.
10. be used for the processing of dyeing waste water like the described a kind of three-phase three-dimensional photoelectric reactor of the arbitrary claim of claim 1~7.
CN2011102408011A 2011-08-22 2011-08-22 Three-phase three-dimensional electrode photoelectric catalytic reactor and application thereof Pending CN102424452A (en)

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Cited By (12)

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CN103663634A (en) * 2013-12-10 2014-03-26 清华大学 Wastewater treatment system adopting three-dimensional electrode method
CN103663631A (en) * 2013-12-10 2014-03-26 清华大学 Three-dimensional particle electrode loaded with catalyst active carbon and preparation method thereof
CN103936115A (en) * 2014-05-14 2014-07-23 中国科学院新疆理化技术研究所 Three-dimensional electro-fenton water treatment method
CN104069786A (en) * 2014-06-23 2014-10-01 华南理工大学 Photoelectrocatalysis reaction device and method for processing organic pollutant effluent
CN104628200A (en) * 2015-01-27 2015-05-20 东南大学 Method for treating organic wastewater by photoelectric combined technique
CN105481051A (en) * 2015-12-08 2016-04-13 天津工业大学 Integrated photoelectrocatalysis-membrane separation fluidized bed reaction device
CN105582906A (en) * 2014-10-24 2016-05-18 广州贝特缪斯能源科技有限公司 Visible-light photocatalytic material and preparation method therefor
CN105597717A (en) * 2015-12-28 2016-05-25 中国矿业大学(北京) Photoelectric synergistic powdered activated carbon regeneration system
CN105906116A (en) * 2016-06-15 2016-08-31 常州市新鸿医药化工技术有限公司 Fluidized bed photocatalytic three-dimensional electrolytic reactor and application thereof
CN106145271A (en) * 2015-03-23 2016-11-23 中国矿业大学(北京) A kind of preprocess method of high-concentration waste water
CN106145282A (en) * 2015-03-23 2016-11-23 中国矿业大学(北京) A kind of pretreatment unit of high-concentration waste water
CN109809530A (en) * 2019-02-18 2019-05-28 江苏理工学院 A kind of mosaic electrode and preparation method thereof and three-dimensional electrolysis reactor and its application

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CN202346797U (en) * 2011-08-22 2012-07-25 上海电力学院 Three-phase three-dimensional electrode photoelectric catalysis reactor

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CN2458286Y (en) * 2000-12-19 2001-11-07 中国科学院广州能源研究所 Photoelectric catalyzing water quality purifier
CN101224401A (en) * 2007-10-19 2008-07-23 东华大学 Fixed bed inhomogeneous three dimensional electrode photo electrocatalysis reactor
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103663631A (en) * 2013-12-10 2014-03-26 清华大学 Three-dimensional particle electrode loaded with catalyst active carbon and preparation method thereof
CN103663634A (en) * 2013-12-10 2014-03-26 清华大学 Wastewater treatment system adopting three-dimensional electrode method
CN103663634B (en) * 2013-12-10 2015-10-28 清华大学 A kind of Waste Water Treatment adopting Based on Three-dimensional Electrode Method
CN103936115A (en) * 2014-05-14 2014-07-23 中国科学院新疆理化技术研究所 Three-dimensional electro-fenton water treatment method
CN104069786B (en) * 2014-06-23 2016-10-05 华南理工大学 A kind of photoelectrocatalysis reaction unit and the method processing organic polluting water
CN104069786A (en) * 2014-06-23 2014-10-01 华南理工大学 Photoelectrocatalysis reaction device and method for processing organic pollutant effluent
CN105582906A (en) * 2014-10-24 2016-05-18 广州贝特缪斯能源科技有限公司 Visible-light photocatalytic material and preparation method therefor
CN104628200A (en) * 2015-01-27 2015-05-20 东南大学 Method for treating organic wastewater by photoelectric combined technique
CN106145282A (en) * 2015-03-23 2016-11-23 中国矿业大学(北京) A kind of pretreatment unit of high-concentration waste water
CN106145271A (en) * 2015-03-23 2016-11-23 中国矿业大学(北京) A kind of preprocess method of high-concentration waste water
CN106145282B (en) * 2015-03-23 2019-08-13 中国矿业大学(北京) A kind of pretreatment unit of high-concentration waste water
CN105481051A (en) * 2015-12-08 2016-04-13 天津工业大学 Integrated photoelectrocatalysis-membrane separation fluidized bed reaction device
CN105597717B (en) * 2015-12-28 2018-08-03 中国矿业大学(北京) A kind of photoelectric-synergetic regeneration Powdered Activated Carbon system
CN105597717A (en) * 2015-12-28 2016-05-25 中国矿业大学(北京) Photoelectric synergistic powdered activated carbon regeneration system
CN105906116A (en) * 2016-06-15 2016-08-31 常州市新鸿医药化工技术有限公司 Fluidized bed photocatalytic three-dimensional electrolytic reactor and application thereof
CN105906116B (en) * 2016-06-15 2019-03-01 常州市新鸿医药化工技术有限公司 A kind of fluidized bed photo catalysis three-dimensional electrolysis reactor and its application
CN109809530A (en) * 2019-02-18 2019-05-28 江苏理工学院 A kind of mosaic electrode and preparation method thereof and three-dimensional electrolysis reactor and its application

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Application publication date: 20120425